Improvement in chtjens



S. S. CASE.

Churn.

Patented Nov. 3. 1868.

N. PETERS. PNOTO-LWHQGRAPHER gm: l

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SCHUYL'ER S. CASE, OF MARION, NEW YORK.

Letters Patent No. 83,815, dated November 3, 1868.

IMPROVEMEHT IN CHURNS.

The Schedule referred to in these Letters Patent and making past of fir!To all whom it may concern Be it known that I, SoHUYLEB S. CASE, ofMarion, county of Wayne, and State of New York, have invented a new anduseful Improvement in (lhurns; and

and in which Figure 1 is a longitudinal vertical section of my churn,taken in the line y y, fig. 2;

Figure 2, a side view of the same;

Figure 3,.a top view of the false bottom, with the pump attached; and

Figure 4, a section through the line at x, fig. 2.

My invention belongs to that class of churns in which a piston, workingin a barrel, communicating with the lower part of the churn, is employedto force air into said churn, and through the milk therein contained,for the purpose of facilitating and hastening the separation of thebutter from milk.

To simplify the constructionof such churns, and thus render them moreeffective and satisfactory in operation, is the object of thisinvention; and it consists, first, in the use of a false bottom,provided with a valve, fitted in the churn, a short distance above thereal bottom, said false bottom being attached to the lower end of thepump-barrel, which is so arranged as to form part of the side of thechurn; and, secondly, my invention consists ina peculiar mode ofsecuring the rod of the air-forcing piston to the dasher-shaft, wherebythe parts are rendered detachable and adjustable, as will hereinafter bemore fully described.

In order to convey a fullunderstanding of my invention, so as to enableothers to make use of the same, I will now proceed to describe itsconstruction and operation in detail, referring to the drawings, inwhich similar letters indicate corresponding parts in the severalfigures. V

A represents the tub or body of the churn, made, in this instance, ofstaves, and provided with the ordinary bottom, a.

G is a hollow stock of wood, fitted into the side of the churn, so as toform a portion of the same.

When the tub is constructed as represented, this stock 0 takes the placeof a stave.

b b b representhoops, placed around the churn, to bind the stavestogether.

- D represents the cover of the churn.

The stock G is partly cutaway at its lower end, for the attachment ofthe false bottom, B, which is secured to said stock by means of nails,screws, or in any other suitable manner.

The space between the real and false bottoms a B,

respectively, constitutes an air-chamber, which commu nicates with thebore 6 of stock G,'by means of an opening, 12, made through thefalsebottom,B, at the edge of the latter.

An opening, 0, is also made through the centre of the false bottom.

An annular depression, surrounding the opening, c, is made in the upperface of the false bottom, and forms a seat for a hinged valve, f,opening upward.

A groove, g, in the under side of the false bottom, connects theopenings at c.

On the upper end of stock 0, a cylindrical barrel, E, of metal, isfitted, and secured in place by means of screws h h, which pass throughthe tongue *5, attached to said barrel, into the stock 0.

F is a plunger, fitted in barrel E, and packed so as to move air-tighttherein.

K is a cavity, formed centrally in the under side of the plunger F, andcommunicating with the upper face of said plunger by means of air-holeso o.

in represents a valve, opening downward, hinged to the under side ofplunger F, so as to cover the mouth of the cavity K.

The plunger F is provided with a. rod, 1, formed at its upper end with aright-angular extension, 21-.

An open tubular socket, p, is made at the extremity of the extension it.

Through this socket, the stem G of dasher H passes, and is held thereinby the clamping-screw r, which works through the sidecf saidsocket p. a

In this instance, the dasher H is made simply of two pieces .2 s,crossed at'right angles, forming four equal arms, the stem G being fixedin the centre.

When it is desired to separate the parts of the churn, for cleansing thesame, the cover D may be first loosened and then removed, together withthe dasher G H and plunger F, or, if preferred, the plunger can be firstdetached, then the cover and dasher, either separately or together.

The stock 0, barrel E, and false bottom B, are taken out togetherbywithdrawingthe same upward, as shown in red, fig. 2, the hoops I) havingbeen first loosened.

The operation is as follows: Milk having been poured into the churn, thelatter is tightly closed, by means of the cover 1), and a verticalreciprocating motion given to the dasher H and plunger'F,simultaneously, by means of the stem G. As the plunger F ascends, airfiom above rushes into the cavity K of the plunger, through theair-holes 0, and, opening the valvem, passes to the under side of theplunger. As the plunger com= mences its downward movement, the valve mis closed,

and, as the plunger continues to descend, the air contained below itbeing compressed, the valve f in the false bottom B opens, permittingthe air to pass into and throughthe milk in the churn. I

By my invention, I am enabled to furnish, at small expense, a simple andefiective churn, by the use of which the separation of the butter fiommilk is greatly facilitated.

On account of the'simple and peculiar construction of my churn, it isnot liable to becomeinoperative, and

at the same time it can be easily, quickly, and effectually cleansed,because of the facility with which the pants may be detached one fromanother.

Having thus described my invention, I wish here to state that I do notclaim broadly forcing air into a churn by means of a plunger, connectedto be operated simultaneously with and by means of the dasherstem, I amaware that this is not new; but

I do claim as new, and desire to secure bv Letters Patent- 1. Thefalse-bottom B, constructed substantially as described, and providedwith a valve, f, when used in connection with a plunger, F, alsoprovided with avalv'e,

m, all constructed and arranged to operate SllbSt2tl1-' tially as hereinset forth and shown.

2. The removable stock 0, to which the barrelE and false bottom, B, areattached, when constructed and alranged as hei'ain shown and described,so as to form part of the sides of the churn A, as set forth, for thepurpose specified.

To the above specification of my improved churn, I have signed my name,this 9th day of September 1868.

Witnesses: SCHUYLER S. CASE.

ALEXR. A. O. KLAUGKE, JACOB F. HENRY.

